What types of vacuum pumps does Kakati manufacture?

At Kakati Pumps, we specialize in the design and manufacture of liquid ring vacuum pumps and compressors. Our product range includes: Single-stage pumps like the KV-Series, Two-stage pumps such as the KDS-Series, KVT-Series, Energy-efficient pumps like the KEN-Series, High-capacity pumps like the KXL-Series, and Customized vacuum systems for specialized industrial needs. All our products are built for durability, energy efficiency, and ease of maintenance.

How does a liquid ring vacuum pump work?

A liquid ring vacuum pump works by using a rotating impeller inside a casing partially filled with sealing liquid (usually water). As the impeller spins, a ring of liquid forms and creates sealed spaces that trap and compress gases. At Kakati, our pumps are engineered to ensure maximum efficiency and reliability, even in demanding applications.

What’s the difference between single-stage and two-stage pumps?

Single-stage pumps (like our KV-Series) are ideal for standard vacuum requirements. Two-stage pumps (KDS, KVT-Series) achieve deeper vacuum and are more energy-efficient at lower pressures. Kakati offers both and helps you choose based on your performance and cost goals.

What is “vacuum level” vs “ultimate vacuum” and why does it matter?

The 'vacuum level' refers to the operating pressure your process needs (e.g., in Torr, mbar, or mmHg), while 'ultimate vacuum' is the lowest pressure the pump can ideally reach under perfect conditions. At Kakati Pumps, we ensure our specifications list both, ensuring consistent real-world performance.

What are the key factors to consider before buying a vacuum pump?

Consider vacuum level, capacity (m³/hr or CFM), gas/vapour composition, duty cycle, temperature, and material compatibility. Kakati conducts free pre-selection audits to ensure clients get the right match for their process.

What problems can occur if I don’t maintain the seal liquid properly?

Poor quality or improper volume of seal liquid can lead to low vacuum, overheating, vibration, or corrosion. Kakati provides closed-loop seal-water systems and training to prevent such issues.

What’s the maintenance schedule for a liquid ring vacuum pump?

We recommend: Monthly inspection of seal liquid, Quarterly checks on bearings and clearances, Annual overhauls for continuous duty pumps. Kakati Pumps provides AMC (Annual Maintenance Contracts) to ensure optimal performance.

How do I troubleshoot common vacuum pump problems like low vacuum or noise?

We at Kakati usually check: Leaks in the inlet or piping, Seal liquid level or flow, Filters or strainers clogging, Impeller-to-casing clearance, Blade, bearing, or motor wear. We also provide a technical helpline and troubleshooting guides.

Why choose a liquid ring vacuum pump instead of a dry or oil-lubricated pump?

Liquid ring pumps are better for wet gas, vapours, and condensables — they handle contaminants easily, have fewer moving parts, and run cooler with less maintenance.

Can I retrofit my existing pump with a Kakati solution?

Yes. We offer retrofit kits and upgrades that improve efficiency and extend the lifespan of existing systems without major layout changes.

What industries does Kakati serve?

Our vacuum pumps and compressors are trusted by major players in industries such as: Power generation, Paper and pulp, Petrochemicals, Sugar, Mineral extraction, Chemical and fertilizer industries. We serve clients in India and over 20+ countries globally.

What vacuum level do I need for my industry?

The ideal vacuum level depends on your process. For example: Paper and pulp: 50–70 Torr, Power generation: 25–35 Torr, Sugar mills: 100–150 Torr. Our team can conduct vacuum audits and recommend the best solution for your application.

What sort of vacuum pump capacity do I need for large industries like sugar or paper mills?

Large industries need pumps with high flow (often thousands of m³/hr) and specific vacuum levels to match processes like evaporators or dewatering. Kakati’s high-capacity KXL series is designed precisely for such heavy-duty applications.

How can I reduce energy consumption in my vacuum system?

Upgrading to a Kakati energy-efficient model, fixing leaks, and optimizing system design can lead to 20–30% energy savings. We also perform performance audits to identify inefficiencies.

How do I know if my vacuum pump is wasting energy?

Common energy wasters include leaks, incorrect vacuum level, poor seal liquid management, and inefficient motors. Kakati offers detailed performance audits to measure usage and recommend energy-saving upgrades.

Are there any environmental or regulatory concerns for vacuum pump operation?

Yes. Concerns include water usage, discharge, sealant disposal, noise, and emissions. Kakati ensures compliance with international standards and offers eco-friendly designs such as water-recirculation systems and low-noise operation.

Why should I choose Kakati Pumps over other vacuum pump manufacturers?

Kakati Pumps has over 60+ years of experience in vacuum technology, with: A strong in-house R&D team, Custom-engineered solutions, Comprehensive after-sales service, and Proven energy-efficient designs. We’re not just a supplier — we’re a long-term partner focused on performance, efficiency, and support.

Does Kakati offer service and maintenance support?

Yes. We provide full lifecycle support including: Installation assistance, Performance audits, Preventive maintenance, Refurbishment of old systems, Genuine spare parts supply. Our expert team ensures minimal downtime and optimal operation.

Can Kakati Pumps be customized for my application?

Absolutely. We offer tailor-made solutions based on your process needs — including vacuum range, gas composition, temperature, and more. We also design complete vacuum systems with separators, piping, and instrumentation.

Where is Kakati Pumps based, and do you ship internationally?

We are headquartered in Hyderabad, India, with manufacturing and service units across the country. We export globally, serving customers in Asia, Africa, the Middle East, and beyond.

How much does a good industrial vacuum pump cost, and what affects the price?

Cost depends on capacity, vacuum level, materials, energy efficiency, and customization. Kakati offers transparent quotations detailing pump cost, servicing, and lifecycle value.

How do I get a quote or technical recommendation?

Simply fill out the Enquiry Form on our website. Our team will get in touch within 1–2 business days with technical suggestions and pricing.

What Happens During a Liquid Ring Vacuum Pump Performance Audit – Step by Step

Liquid Ring Vacuum Pumps (LRVPs) are widely used in power plants, paper mills, chemical plants, refineries, and vacuum systems where reliability is critical. Over time, changes in process conditions, wear, and operating practices can significantly impact pump performance.

A Liquid Ring Vacuum Pump Performance Audit helps identify hidden losses, inefficiencies, and improvement opportunities—often without replacing the pump.

Let’s walk through what actually happens during a performance audit, step by step.

Step 1: Understanding the Application & Design Conditions

The audit begins with a clear understanding of:

Pump model, capacity, speed, and drive arrangement
Original design vacuum and capacity
Application (condenser air evacuation, vacuum filtration, paper machine, etc.)
Gas composition (air, vapour, non-condensable)
Seal water flow rate and inlet temperature

👉 This step establishes the benchmark against which current performance will be evaluated.

Step 2: Review of Operating Parameters

Next, actual operating conditions are recorded:

Suction vacuum (mbar(a) or mmHg)
Discharge pressure
Seal water inlet and outlet temperatures
Seal water quality and flow
Motor power consumption (kW)
Pump speed (rpm)

Any deviation from design conditions is noted, as LRVP performance is highly sensitive to seal water temperature and pressure.

Step 3: Physical Inspection of the Pump & System

A visual and mechanical inspection is carried out to identify:

Excessive vibration or abnormal noise
Leakage from shaft seals or casing
Condition of bearings, coupling and pulleys alignment
Scaling, corrosion, or erosion inside the pump
Piping layout, restrictions, and drain arrangements

👉 Many performance losses are caused not by the pump itself, but by system-level issues.

Step 4: Measurement of Actual Pump Performance

During this step, on-site measurements are taken to assess:

Actual air or gas handling capacity
Achieved vacuum versus expected vacuum
Power drawn at different operating points
Stability of vacuum under load changes

These readings help determine whether the pump is:

Operating underloaded
Overloaded
Flooded with excess seal water
Starved due to high seal water temperature

Step 5: Seal Water System Evaluation

Since seal water is the heart of an LRVP, special attention is given to:

Seal water source (fresh, cooling tower, closed loop)
Temperature rise across the pump
Adequacy of seal water flow
Effectiveness of heat exchangers or condensers

👉 Even a 5–10°C increase in seal water temperature can cause a significant drop in vacuum performance.

Step 6: Identification of Performance Losses

Based on collected data, losses are categorized as:

Mechanical losses (wear, clearances, bearings)
Thermal losses (high seal water temperature)
Hydraulic losses (incorrect flow, piping restrictions)
Operational losses (running far from design point)

This step pinpoints why the pump is not delivering its expected performance.

Step 7: Energy Efficiency & Power Consumption Analysis

The audit also evaluates:

Specific power consumption (kW per m³/min)
Comparison with design and best-practice values
Potential energy savings through optimization

In many cases, simple changes like seal water temperature control or speed reduction can lead to noticeable power savings.

Step 8: Recommendations & Improvement Plan

Finally, a detailed audit report is issued with:

Current vs design performance comparison
Identified root causes
Corrective actions (operational, mechanical, or system upgrades)
Expected performance improvement and energy savings

Recommendations may include:

Seal water optimization
Internal refurbishment
System piping modifications
Upgrading to high-efficiency LRVP or alternative technology

Why a Performance Audit Matters

A Liquid Ring Vacuum Pump Audit Helps You:

Restore lost vacuum capacity
Reduce power and water consumption
Improve system reliability
Avoid unplanned shutdowns
Extend pump life

Most importantly, it enables data-driven decisions instead of trial-and-error maintenance.

Final Thought

A Liquid Ring Vacuum Pump Performance Audit is not just a check—it’s a health assessment of your entire vacuum system. Regular audits ensure your system operates efficiently, reliably, and economically throughout its life cycle.